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For you camera guys: HDR photography

C

Cratermaker

Charter Member
Have you tried it? Take a look at these images (taken with auto exposure bracketing). First, under exposed, 2nd "Correctly" exposed, 3rd overexposed and the last is the first three combined in to a HDR photo. It's for static situations when the correct exposure for all elements in the picture are impossible or for artistic purposes. I was using the free trial version of this vendors software, and that's why the last image looks overly compressed: it is limited to a 1Megapixel output file.


IMG_2204.jpg


IMG_2203.jpg


IMG_2205.jpg


IMG_2203_to_2205_CR2.jpg
 
I've played around with it a little bit using the HDR function in PS CS2 (which admittedly isn't the best HDR algorithm out there) .
The widest auto-bracket spread I can do with my DL is +/-2.0 so I've had better results shooting multiple singles and setting the aperture manually to get a wider spread.

At the moment I personally don't really care for it except in certain situations but it is a neat technique for use on some subjects.
 
I've heard of it, but I was thinking you had to take a HDR by taking three pictures of the same subject with a different shutter speed, say, one 1/80, next one 1/60, last one 1/50 or similar.
I'll give it a go at the next airshow, see how a static display plane looks in HDR.
If I remember correctly, the new Pentax K-7 flagship model has a specific HDR-feature built into the body.

I've seen some marvelous pictures on a Belgian forum, made by a Dutch guy, Joost Van Doorn.
Here's his Flickr, two examples:
http://www.flickr.com/photos/joostvandoorn/3438363489/
http://www.flickr.com/photos/joostvandoorn/3501659442/
 
This is an interesting process for sure, I have been messing with it a little, I have been having most trouble finding good subjects, I really need to go on a Photo excursion. There are numerous sites out ther that are dealin gwith HDR now, just google the term HDR Photography and you will get a huge result. I found a few free / trial HDR apps and some are pretty good, it takes some practice but it is fun if you like that sort of thing.
 
JorisVandenBerghe said:
I've heard of it, but I was thinking you had to take a HDR by taking three pictures of the same subject with a different shutter speed, say, one 1/80, next one 1/60, last one 1/50 or similar.
Click to expand...

I've seen it suggested both ways...using either the aperture or the shutter speed to over/under-expose your images. The shots I've been fiddling with have been long-range landscapes where the DoF isn't affected by tweaking the aperture so that's what I've been playing with.
I might monkey around with it more to see if using the shutter speed to control exposure works better too. Just haven't really found the subject material that I shoot that using HDR makes look good.
 
Moparmike said:
Just haven't really found the subject material that I shoot that using HDR makes look good.
Click to expand...

Simply grab a wide angle lens and run out to a parking lot somewhere, or the downtown area of a small city or town. There are many cool uses for HDR. Most of the good ones are of objects, like cars or buildings. However, I'd think HDR would be cool for reptiles and other interestingly colored wildlife.

I'll post my example as soon as I get the time to turn them into a single HDR image.
 
Some of these cameras do weird things to horizontal and vertical lines eh. I've "merged" some digital images before. Does weird curved surface things to a flat horizon like the sea.
 
Photography.

Very interesting. I'm well into photography, I do have a digital camera, but I also like to get my hands wet and have an enlarger and all the gear. I have a Rollieflex T, Canon AE1 Sigma SA7 and somwhere knocking around I have a Russian Lubitel mock TLR. I have to wai till winter do do any enlarging because dark night make it easier, no blacking out!

Ken
 
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